Improvement in malt-mills



J. GARD'INER.

Malt Mill.

Patented Sept. 8, 1868.

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JOHN GARDINEB, OF' PHILADELPHIA, PENNsYIJVANIA.

Letters Patent No. 81,994, dated September 8, 1868.

IMPROVEMENT IN MALT-MILLS.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN GARDINER, of the city and county ofPhiladelphia, and State of Pennsylvania, have invented a new and usefulImprovement in MaltMills; and I do hereby declare that the following isa full, clear, and exact description of the construction and operationof the same, reference being had to the annexed drawings, making a partof this specification, in whicb- Figure 1 is a plan or top view of theimproved mill, with one of the cheeks D removed.

Figure 2 is a side elevation of the same.

Figure 3 is a face view of one of the cheeks D.

Figure 4 is an end view of the same.

Figures 5 and 6 are a face and end view of one ofthe steel plates cZ.

Figure 7 is a face view of the roller C.

Figure 8 is a face view of one of the plates E.

Like letters in all the figures indicate the same parts.

The nature of my invention mainly consists in combining verticalcast-iron cheeks with a bed-plate, which supports the rollers of amalt-mill, for the rollers to work between, the said cheeks being faced,in whole or in part, with hardened'steel plates, to take the thrust ofthe malt as it passes between the rollers.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

A is a cast-iron frame or bed-plate which supports the mashing-rollers BC.

It has pillow-blocks, a, which support andconfine the boxes 6 of thefixed roller B, and studs 0 cast with it, the studs being for thereception of the set-screw d, for operating the journal-boxes e of theadjustable roller C.

Instead of constructing one of the rollers with wide flanges, for theother roller to work between, I construct the rollers both straightthroughout their whole length, and have cast-iron cheeks, D D, betweenwhich they revolve.

These cheeks have flanges, f, which are bolted firmly to thepillow-blocks a and studs e, their under sides serving to keep thejournal-boxes in their perpendicular position. I

There are rebates, g, around the inside of the cheeks, to receive thehopper for feeding the mill, except at the lower edge, where the rebatesfit against iron plates, for protecting the malt from the waste-oil fromthe journal-boxes, which plates I will hereafter describe.

The faces and flanges of the cheeks D, I plane square with each other,so as to effect a free running of the rollers without much play at theirends. One of the cheeks is represented in detail in figs. 5 and 6.

I face the cheeks in whole or in part with hardened-steel plates, totake the thrust of the malt as it passes between the rollers B O, asthelateral force of the malt is very great, making it necessary to providehard facing-s, to prevent the rapid wear of the opposing faces; but as asmall portion only of the cheeks takes the thrust, I usually have smallplates, it, (see figs. 3, 5, and 6,) which are dove-tailed into thefaces of the cheeks, and con-fined by means of rivets 2'. 7

There are iron plates, E, which are bolted fast to lugs j, which arecast fast to the inner edges of the bedplate A, leaving spaces, F,between the bed-plate and the plates E, for waste-oil from thejournal-boxes to pass down, to prevent its getting into the malt.

The lower parts of these plates, below the bed-plate, serve to bolt orotherwise confine the chute 20, which conducts the mashed malt from therollers. I

The upper edges of the plates extend to the centre of the collars,hereinafter described, on the rollershafts. being scallopedout, as seenin fig. 8, and fit in the rebates in the under edges of the cheeks D D-The rollers B C have collars, It, which keep them in their lateralposition, the collars fitting against the journal-boxes, and preventingtheir ends rubbing against the cheeks D D.

The rollers I make of unequal sizes, and gear them together withspur-wheels G, of equal size, to produce a shearing or grindingoperation on the melt, or else I make them (if equal size, and have'thegear-wheels of,

unequal sizes, to efl'eet the same thing.

Having thus fully deseribecl my improvement in malt-mills, what I secureby Letters Patent, is-- The construction'ofthe cheeks D D with steelplates E E, and the arrangements of the said cheeks with themashing-rollers B C,substantia,ily in the manner he reinbeforedescribed, and for the purpose set forth.

v In-teetimony that the above'is my invention, I have hereunto set myhand, this seventh day of October, 1865.

JOHN GARDINER. Witnesses STEPHEN USTICK,

JOHN WHITE. I

claim therein as new, and desire to

